12 June 2007 : I had to focus on stable practice with
only one model before Bingscupen, but today was the day for the first flights. I
made two flights both with the same APC 17x12N prop that I used for initial
running. First of all, there is a tremendous amount of power available
with this engine. Most of the flights were done at reduced throttle setting, but
I had to give it full power a few times to get an impression of the potential. I
have never seen an Oxalys going this fast vertically. After the flight I checked
the MAX RPM detected by the ECU during the flight, it was a whopping 9080
! After the flights I did a static run with a normal APC 18x10, the
maximum RPM detected by the ECU was now 8820
!. My conclusions are that both these two propellors are too small and that the
obvious issue with this engine is how to control all this power without A
: flying too fast and loosing smothness and gracefullness and B : failing
the noise-test (without cheating). I have some other props that I would like to
test, and I have ordered some of the new APC-props (18x11 and 18.5x9.5) and will
postpone further testing until I have all these alternatives available. As
I see it today I might end up looking for a suitable 3-bladed prop, maybe a
17x10 3-blader will be able to absorb all the power?

26 May 2007 : After some minor modifications to the
engine mount, one OS FS200S-FI is now mounted into one of my old and trusty Oxalys models.
Have not had time to testfly it yet, just some static
running. It started and ran very nice out of the box using the Hatori 828
header and 824-muffler supplied by OS. I used fuel with 15% Aerosyth
Competition oil and 20% Nitro (from JeRo fuel in Norway), and an APC 17x12N for
initial running. From this first test I can only say that this is a
powerfull engine, running just lean enough for even running the RPM was above
8500. The level of vibration was not as bad as I feared, it seems to be a
very smooth running engine.

15 May 2007 : I just received this from OS today, it will
be mounted into one of my Oxalys models instead of the OS 140RX FI that has sat
there so far. I will come back with more info and experience later, but
for now enjoy the pictures.